atd - run jobs queued for later execution
SYNOPSIS
atd [-l load_avg] [-b batch_interval] [-d] [-s]
DESCRIPTION
atd runs jobs queued by at(1).
OPTIONS
-l Specifies a limiting load factor, over which batch
jobs should not be run, instead of the compile-
time choice of 0.8. For an SMP system with n
CPUs, you will probably want to set this higher
than n-1.
-b Specifiy the minimum interval in seconds between
the start of two batch jobs (60 default).
-d Debug; print error messages to standard error
instead of using syslog(3).
-s Process the at/batch queue only once. This is
primarily of use for compatibility with old ver
sions of at; atd -s is equivalent to the old atrun
command. A script invoking atd -s is installed as
/usr/sbin/atrun for backward compatibility.
WARNING
atd won't work if its spool directory is mounted via NFS
even if no_root_squash is set.
FILES
/var/spool/at The directory for storing jobs; this should
be mode 700, owner daemon.
/var/spool/at/spool The direcotry for storing output; this
should be mode 700, owner daemon.
/etc/at.allow, /etc/at.deny determine who can use the at
system.
SEE ALSO
at(1), atrun(1), cron(8), crontab(1), syslog(3),
at.deny(5), at.allow(5).
BUGS
The functionality of atd should be merged into cron(8).
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